How to do it?

If the save was made in SoD, then Wog couldn't change anything anymore; it's strange that he even opened it.

In short, it seems to have worked, but at some point in the game, it crashes. I set it up for Wog on the collection.

Added 1 hour 36 minutes ago
I managed to create improved elves from regular elves, BUT that's not what I wanted. I was trying to do something else a long time ago. For example, I could turn 100 centaurs into 100 elves. I remember having 1000 elves; you go and defeat everyone.